Controlling mechanism for machines acting on sheets.



m. 854,08QL- PATJENTE'D MAY 21,1907;

, F; L. GROSS.' I v CONTROLLING MECHANISM FOR MAGHINES ACTING 0N SHEETS.E

' Arrmouxon FILED APR. 3, 1905. nnmswnn NOV.2, 1906.

' I zsHnn s-snnn'r 1.

I lzwqntar.

dei zw No. 854,080.. PATENTED MAY 21, 1907;

I F. L. GROSS.

CONTROLLING MECHANISM FOR MACHINES ACTING 0N SHEETS APPLICATION FILED13,1905. xB-Knwnn 1107.2. 1906,

BEETS-BEBE 2'.

FRANK n cnoss, or

f To vol/I whom whim/y concern.-

nnirrnn s'rnms MAINE,

PATENT ()FFICE.

t MYSTIC, oo NEoTIc n AssicNon TO CROSS PAPER FEEDER COMPANY, OF BOSTON,MASSACHUSETTS, A CORPORATION OF- CONTROLLING. MECHANISM FOR MACHINESACTlNGyON SHEETS.

Specification of Iietters Patent,

. Patented May 21,1907.

. Application filed April 3, 1905. Renewed NovemberZ, 1906; Serial No.341.782.

Be it known that I, FRANK-L; CRoss, of .Mysticj, in .the county of NewLondon and State of Connecticut, have invented certain new and usefulImprovements in- Controlling Mechanism for'Machines' Acting on Sheets,of

which the following is'a specification.

whenever a sheet is not fedinto theproper position to be acted upon.-

The object of the invention isto provide a controlling mechanism of thischaracter which shall be simple in construction and reliable'inoperation and which may be readily adapted for use in connection withprinting resses to which sheets are automatically fed h ism, theengagement of which is controlled y sheet feeding mechanism.

In practicing my invention I operate the "mechanism which throws themachine but of operation, through an arm connectedwith said mechanismand having its freee'nd ar ranged at one side of the path of thesheets.

The front end of the arm is provided with a shoulder or recess arrangedin the path of movement of an actuator which is located on the oppositeside of the path-of the sheets.

When a sheet is properly-fed it lies between In adapting my inventionfor use. in connection with printing presses, I arrange the arm which'isconnected with'the throw-out mechanism, above the path of the sheets andwith the shoulder or reces just back of the front ed e of the sheet w onthe sheet is against t e front gages of the printing press. When thesheet is brou ht into position with the front edge against t 1e frontgages, it lies below the shoulder or recess n the arm and in the path'oftheactuator asit advances toward the shoulder or recess. I prefer toemploylas an actuator, a bar arrangedto be reciorow-ied; in line withthe shoulder or recess I and tov engage the under surface of the sheetwhen said sheet is properly positioned.

When the'sheet is properly. posit1oned'be.'

tween. the actuator bar'and the arm conn cted with the throw-outmechanism, the actua-v tor moves'along the underjsurface of the-,.

sheet during its advance movement and the engagement of the actuatorwith the shoul.

{191 or recess in the arm is prevented. In or;

tie! that the sheet may move to accommodate the movement "of theactuator, the-arm is pivotally supported to swing upward as the actuatorpasses along the under surface of the sheet, thereby lifting it. Whenthe sheet is not in proper position theactuator during its advancemovement engages the recess or shoulder on the arm and operates thethrow.- out meehanism. This construction and arrangement enables theparts of the mechanby the presence of the 'sheet, to be. arranged "closeto the surface of the impression cylinder and at the same time to actefficiently and positively in throwing the machine out of op- In thesedrawings showing'one side of a feed board for a print- .ing press withthe controlling mechanism applied thereto. .Fig. 2 is a side elevation,certain parts being removed and other parts shown in section for thesake of clearness. Figs. 3 and} are enlarged details showing the freeend of the arm through which the throw-out mechanism is operated. liSa'partial detail showing a modified form of connection between the armand its support, and Fig. 6 is an enlarged perspective view showing amodifiediierm of connection between the actuator, bar and throw-out",Inechanismfarmq;

In the constructionshown inthe drawings,

themachine out of operation so the arm throu h Figure 1 is a plan view.

A indicates the impression cylinder of a printing press to which thesheets are successively presented by being moved or fed intopositionagainst the front gages A of the press. The sheets may be fed by anysuitable mechanism or by hand and when automatically fed the feedingmechanism should be driven by suitable connections with the mechanismfor operating the press,

so that both the feeding mechanism and the press be thrown out ofoperation simultaneously in case a sheet is not properly presented andregistered against the front gages.

In the-construction shown in the drawings known construction, such forinstance as an 1 electric switch or mechanical or electric devices whichare either released or operated by the movement of the link C The sleeveC is loosely mounted upon a rock shaft D which extends transversely ofthe machine above the sheet support B. The sleeve C remains at rest solong as the sheets are properly fed. The sleeve rocked, however, tooperate the arm C and connected parts \of the stop mechanism in case asheet is not properly fed through an arm C connected with the sleeve.

The arm C extends in an'inclined direction toward the line of the frontgages A and is so arrangedthat its free end lies above the sheet whenthe sheet is in position against the front gages. A recess C is formedin the under side of the arm C near its free end and the end of thisrecess forms a shoulder C which lies just back of the line of the frontgages This shoulder is also arranged in position to be engaged by theend of an actuator bar E arranged below the path of the sheet and'reciprocated in. a line intersecting the path of the sheet and passingthrough the shoulder i The reciprocation of the acutator bar E is sotimed with relation to the feeding mechanism that the bar E is advanced.just after the front edge of the sheet engages the front when the sheetis properly fed. With the sheet in' this position the front end ofthebar it advances, presses against the under surface of the sheet whichrises somewhat as the bar advances so that the end of the bar passesidly by the shoulder C. In order to accommodate the upward movement ofthe sheet as the actuator bar advances, the arm Ct is'pivotailysupported a manner which just-ed to vary the position of the arm.

will be further explained. In case the sheet is not properly positionedagainst the front gages, then as the bar E advances it engages theshoulder C" and carries the arm C forward with it, thus rocking thesleeve C and:

tudinally. In order that these adjustments may be conveniently andsimultaneously effected in such manner that the shoulder-C will beadjusted in line with the movement of the reciprocating bar E, I preferto support the arm C in the manner shown in Fig. 2'.

I As shown in this figure and in Fig. 1, the arm C is pivoted at itsrear end to one end of a lever C which is in turn pivoted to an arm Csecured to the sleeve C. The opposite end of the lever C is held bymeans of a spring C in engagement with an adjusting screw C mounted inthe arm C By turning the screw C the lever C may be swung about itspivot to move the arm longitudinally and thus carry its free end forwardor back in the line of travel of the sheet.

In order that the end of the arm may be maintained at the proper heightas it is adjusted with relation to the line of the front gages, the armis supported by means of an adjusting screw C upon'an inclined support(1. The support is properly shaped with relation to the path of movementof the pivoted end of the arm C to maintain the free end of the arm inproper relation to the recip'- rocatihg actuator bar as the lever C isad- In order that the arm C may turn about its pivot and accommodate therocking movement of the sleeve C when the arm is advanced by theengagement of the actuator bar with the shoulder C the support C isyieldingly mounted upon the arm C shown, this support is formed at thelower end of a lever 0 the upper end of which car- Since the ries anadjusting screw C arranged to bear gages, the supports C are adjustablysecured upon the sleeve screws C E may be conveniently adjustedtransversely by means of clamping of themachine to correspond to theadjust- ,"ment of the arms C these bars are adjustably connected with atransverse bar 9; This bar E is provided at opposite ends with guidingslots E embracing fixed pins E and the bar is reciprocated to advanceand re tract the-actuator bars through links E connecting the ends ofthe bar E with arms-E which are jsecured to the rock shaft D. The rockshaft D may be operated at proper intervals through a linkE pivotedatone end to an arm E secured to the rock shaft-and connected at theother end with any suitable operating means.

In Fig. 5 I have shown a modified con-- struction in which the arm 0 issecured to a lever C In this construction-provision 18 made for thelongitudinal adjustment of the der C in line with the actuator bar E.The interposed spring 0 formsa yielding sup port which enables the arm Cto swing about its pivot as the arm is moved forward by the actuator barin giving the arm and sleeve C a rocking movement. In Fig. 6 I haveshown a modified construction for efl'ecting the connection between theactuator bar 'and'the arm through which the throw-out mechanismis'operated. In this construction the recesses 0* exten through the endof thearm c? and the actua torbar is provided with fingers e adapted topass through the recesses c.

When the shoulders c engage the arm 0 this engagement in connection withthe engagement of the shoulders c with the under -.surface of thefingers e lock the actuator bar and arm 0 together so that the arm iscarried forward with the actuator barl While I prefer to use aconstruction and arrangement substantially like that shown in it willheunderstoodthat the details of construction and arrangement maybeNariously modified and changed 'without defparting from the invention. la Without attempting toexplain in detail the VEtIiQUSfiOIlS'tIjlltlOIlS'in which the invention may be embodied, what I claim and desire tosecure by Letters Patent is 1. Controlling mechanism for machines.

acting on sheets, having in combination In order that the actuatorbarsacting on sheets front gages against which the sheet is registered,throw-out mechanism, an arm con- 'nected therewith arranged atone sideof the path of the sheet and provided with a shoulder back of the lineof front gages, an actuator arranged on the opposite side of the path ofthe sheets and rendered inactive by an in "terpo'sed sheet. I g c 2.Controlling mechanism for machines acting on sheets, havingincombination iront gages against which the sheet is-registered,throw-out mechanism, an arm connected therewith arranged at one side ofthe path of the sheets, a recess in said arm back of the line of thefront gages, and an actuator adapted to engage said recess in theabsence of a sheet between the arm and actuator.

Controlling mechanism for machines acting on sheets, having incombination throw-out mechanism, an arm connected therewith and arrangedabove the path of the sheets, a recess in said arm, and an actuatorarranged below thepath of the sheets and adapted to engage said recessin the absence of a sheet between the arm and actuator.

4.. Controlling mechanism for machines acting on sheets, having in'combination throw-out mechanism, an arm connected therewith and arrangedabove the path-of the i sheet, a shoulder onsaid arm located above theedge of the sheet when in position, and an actuator arranged below thepath of' the sheet and adapted to engage said shoulder in the absence ofa sheet between. the arm'and actuat0r.-

5.. Controlling. mechanism for machines acting on sheets; havingincombination throw-out mechanism, an arm connected therewith, and -'areciprocating actuator between which and the arm the sheets pass, a

shoulder onsaid arm in line with the move ment of the actuator, andmeans for adjusting said arm to vary the position of the shoulder insaid line. c

6. Controlling mechanism for machines. acting on sheets, having incombination throw-out mechanism, an arm connected therewith andhavingits free end'above the path of the sheets, a recess in the free end ofthe arm, and areciprocating-actuator bar arranged below the path of thesheets.

7. Controlling mechanism for machines acting ,on sheets, having incombination throw-out mechanism, an arm yieldingly connected therewithand having its free end arranged above the path of the sheets, a recessin the free end of the arm, and a'reciproeating actuator bar arrangedbelow the path of the sheets.

8. Controlling mechanism for machines having in combination throw-outmechanism, an inclined arm pivotally connected therewith and having itsfree end arranged above the path of the sheets; a reciprocating actuatorbelow the path of the sheets, a shoulder on tlie arm in Y acting onsheets having in combination,

line with the movement of the actuator, and means for adjusting said armlongitudinally and vertically.

9. Controlling mechanism for machines acting on sheets, having incombination front gages against whi h the sheet is registered, an armhaving its free end arranged above the path of the sheets, a shoulder onsaid arm back of the line of the front gages, a

reciprocating bar arranged below the path of the sheets and preventedfrom engaging said shoulder by the sheet, and throw-out mechanismconnected with said arm.

10. Controlling mechanism for machines front gages againstwhich thesheet is registered, throw-outmechan'ism, a connected;

arm inclined toward the front gages and hav ing its free end above thepath of the sheets, a zo shoulder on said arm, a reciprocating actua torbar below the path of the sheets and prevented from engaging saidshoulder by the sheet.

In testimony whereof I have alIiXed my 25 signature, in presence of twowitnesses.

FRANK- L. CROSS. Witnesses:

IRA L. Fisn,

KATHARINE A. DUGAN.

